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Standard Thyristors (SCR)

Standard and sensitive-gate SCRs are invaluable when simple gate drive or mains voltage is the given environment of the system. They cover crowbar protection, motor control, mains network switching and a variety of energy pulse delivery systems.

ST's SCR devices allow a peak voltage up to 1200 V, a maximum current up to 50 A, with gate trigger current either well under 1 mA for sensitive types or x10 mA for standard gate versions.
They are available in SOT-23, SOT-223, TO-92, DPAK, IPAK, TO-202-3, TO-220, RD-91 and TO-P3 packages.

New SCR optimized for rugged circuit breaker applications

The newcomer to ST’s logic level thyristor family, the TS110-8, is dedicated to miniature circuit breakers. It enables designers to reach a very low power consumption and a high robustness design thanks to its low leakage current and its 1250 V direct surge voltage capability. It provides high off-state immunity (dV/dt=200 V/μs) that ensures the breaker does not trip in case of an electrical fast transient (EFT) on the mains. The TS110-8 is available in the through-hole TO92 package, with two pinout versions, and in the surface-mount 3-lead SMBFlat-3L package.  
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